Middle English word ambiguite comes from Latin ambiguus, and later Latin ambiguitas (Ambiguity, uncertainty, equivocalness.)

Detailed word origin of ambiguite

Dictionary entry	Language	Definition
ambiguus	Latin (lat)	(figuratively) wavering, not to be relied on, untrustworthy, unreliable, treacherous. (of discourse) obscure, ambiguous. Changing, fluctuating, wavering. Going two ways, hither and thither, moving from side-to-side. Hybrid. Uncertain, doubtful, undecided, indecisive.
ambiguitas	Latin (lat)	Ambiguity, uncertainty, equivocalness.
ambiguite	Old French (fro)
ambiguite	Middle English (enm)